Gholamali Sharifishourabi, Amran Ayob, Soheil Gohari,
Mohd Yazid Bin Yahya, Shokrollah Sharifi and Zora Vrcelj
Vol. 10 (2015), No. 1, 1–16
DOI: 10.2140/jomms.2015.10.1
Abstract
Deflection and stress analyses of functionally graded beams with complex
cross-section and general material variation, under transverse loading, were carried
out. The elastic-fundamental solution is used to derive equations satisfied by the
normal stresses in arbitrary cross-sections of the beam, assuming that the plane
sections remain plane and normal to the beam axis. The technique was verified by
existing analytical and finite element models. Numerical experiments were then
performed where the material properties vary through thickness or width of the
beams according to power-law and exponential gradations. It was found that the
quality of material gradation affects the deflection, stresses and neutral axis
position significantly. It is concluded that the technique is useful for the elastic
behavior analysis of FGBs with complex cross-sections and various material
gradations.
Keywords
static analysis, functionally graded beams, general
material variation, bending